Stewartby is a model village and civil parish in Bedfordshire, England, originally built for the workers of the London Brick Company.

The later retirement bungalow development of the 1950s and 1960s with the pavilion community centre in their midst was designed by the neo-Georgian architect Professor Sir Albert Richardson.

The family's son Sir Malcolm Stewart had amalgamated LBC with the Forders Company in the village in the 1920s.

[citation needed] More than £1 million was spent on Stewartby Brickworks in 2005–7 in an attempt to reduce sulphur dioxide emissions.

[citation needed] The factory used Lower Oxford Clay, which contains circa 5% marine organics, formed 150 million years ago when it was on the sea bed.

[6] In December 2023, Universal Destinations & Experiences announced that it had purchased 480 acres of land on the site of the brickworks, with the company exploring the possibility of building a theme park and resort in the area, citing nearby Bedford's proximity to London and Luton Airport.

The line now sees an hourly service Monday to Saturday between Bedford and Bletchley, operated by London Northwestern Railway using Class 230 trains.

The lake is home to Stewartby Water Sports Club, a not for profit organisation which promotes Angling, Power Boat Racing, Sailing, Wakeboarding and Waterskiing.